Me 3... I'm having trouble with getting the game to recognize that I've killed Bardilys, and so even though I have killed him (and, I think, all his troops) all the areas I need to go to next are out of bounds.

You bet! I'm rolling the new installer as I write this, and soon I'll post it on this site, as well as updating Impulse.

Impulse will probably take about a day to update, but the serial you got from them will still work for our version, so watch our news page, and as soon as the new installer goes live just download the demo from the Hegemony page and you should be good to go.

edit : no patch on Impulse yet :( I guess this is some kind of punishment for not buying the game from you directly

I bought my copy at Impulse too but you don't need to wait for them. Just download the demo off this site, it's already updated with the patch (as said above). Install it, enter your Impulse serial and you're patched. ;)